Question

5.1. api 相关参数

rpcapi 启动后允许连接到系统的API协议

			
geth --networkid 100000 --rpc --rpcapi "db,eth,net,web3" --rpccorsdomain "*" --datadir "/app/chain" --port "30303" console	
			
		

系统默认监听 127.0.0.1 如果希望外部访问本机，需要通过--rpcaddr指定监听地址。

			
geth --networkid 123456 --rpc --rpcaddr="0.0.0.0" --rpccorsdomain "*" --nodiscover		
			
		

5.1.1. rpcapi

--rpcapi 可以控制访问内容

				
$ geth --rpc --rpcapi personal,db,eth,net,web3 --rinkeby	
				
			

5.1.2. rpcaddr

默认是 127.0.0.1

HTTP endpoint closed: http://127.0.0.1:8545

通过 --rpcaddr="0.0.0.0" 指定监听地址

HTTP endpoint opened: http://0.0.0.0:8545

				
neo@netkiller ~/ethereum % geth --networkid 123456 --rpc --rpcaddr="0.0.0.0" --rpccorsdomain "*" --nodiscover console  
INFO [01-20|01:41:33] Starting peer-to-peer node               instance=Geth/v1.7.3-stable-4bb3c89d/linux-amd64/go1.9.1
INFO [01-20|01:41:33] Allocated cache and file handles         database=/home/neo/.ethereum/geth/chaindata cache=128 handles=1024
INFO [01-20|01:41:34] Initialised chain configuration          config="{ChainID: 15 Homestead: 0 DAO: <nil> DAOSupport: false EIP150: <nil> EIP155: 0 EIP158: 0 Byzantium: <nil> Engine: unknown}"
INFO [01-20|01:41:34] Disk storage enabled for ethash caches   dir=/home/neo/.ethereum/geth/ethash count=3
INFO [01-20|01:41:34] Disk storage enabled for ethash DAGs     dir=/home/neo/.ethash               count=2
INFO [01-20|01:41:34] Initialising Ethereum protocol           versions="[63 62]" network=123456
INFO [01-20|01:41:34] Loaded most recent local header          number=531 hash=1a2707…3a27bc td=79083846
INFO [01-20|01:41:34] Loaded most recent local full block      number=531 hash=1a2707…3a27bc td=79083846
INFO [01-20|01:41:34] Loaded most recent local fast block      number=531 hash=1a2707…3a27bc td=79083846
INFO [01-20|01:41:34] Loaded local transaction journal         transactions=0 dropped=0
INFO [01-20|01:41:34] Regenerated local transaction journal    transactions=0 accounts=0
WARN [01-20|01:41:34] Blockchain not empty, fast sync disabled 
INFO [01-20|01:41:34] Starting P2P networking 
INFO [01-20|01:41:34] RLPx listener up                         self="enode://9f6490ffb5236f2ddc5710ae73d47c740e0a3644bbd2d67029cf4a6c4693d2f470b642fd2cc3507f7e851df60aaeb730a1270b7a477f91ec5b6b17a8a4b40527@[::]:30303?discport=0"
INFO [01-20|01:41:34] IPC endpoint opened: /home/neo/.ethereum/geth.ipc 
INFO [01-20|01:41:34] HTTP endpoint opened: http://0.0.0.0:8545 
Welcome to the Geth JavaScript console!

instance: Geth/v1.7.3-stable-4bb3c89d/linux-amd64/go1.9.1
coinbase: 0x83fda0ba7e6cfa8d7319d78fa0e6b753a2bcb5a6
at block: 531 (Tue, 14 Nov 2017 17:36:05 HST)
 datadir: /home/neo/.ethereum
 modules: admin:1.0 debug:1.0 eth:1.0 miner:1.0 net:1.0 personal:1.0 rpc:1.0 txpool:1.0 web3:1.0

> INFO [01-20|01:41:40] Mapped network port                      proto=tcp extport=30303 intport=30303 interface="UPNP IGDv1-IP1"